A High-Speed Fiber Optic Data Bus for Local Data Communications

Porter, D. R.; Couch, P.; Schelin, J. W.

doi:10.1109/jsac.1983.1145933

Cited by 13 publications

(1 citation statement)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…850 nm, multimode, (incoherent) amplitude modulation enjoys by far the largest commercial exploitation even though its bandwidth is limited to about to about 400 MHz. More advanced coherent systems are being investigated for aircraft use, Glomb (4) and Porter et al (5). For reasons of economy, and the availability of off -the -shelf components, we have, however, chosen the first generation as the backbone of our PEM testbed network.…”

Section: Methodsmentioning

confidence: 99%

Fo Lan Based Intelligent Sensor Testhed For Propulsion And Avionics Module (PAM)

Zijp

Choudry

Patrick³

1987

SPIE Proceedings

View full text Add to dashboard Cite

Spacecrafts planned for the years 1995 -2000 are envisaged to contain a generic PAM (Propulsion Avionics Module) A part of the PAM has the task to process data form a large number of embedded sensors to perform control, diagnostics and health monitoring. These tasks include the following.--Control, for the real -time closed loop control of the craft during the mission.--Diagnostics, for fault isolation and corrective action initiation during the mission.--Health Monitoring, to assess after a mission, if the craft will fly again? What refurbishing is needed?To carry out the above tasks the PAM and the associated sensors should provide an integrated environment to perform three generic computational activities, namely, numeric manipulations for general data processing and data base management, symbolic manipulations for diagnostics and decision making, graphic presentation as an interface with operators in manned missions. Furthermore, the communication among the processors and the sensors should be EMI and hostile environment resistant. We have implemented a FO -LAN based testbed as an integrated environment of numerical, symbolic and graphic processors with ports for sensors and actuators.A multimode, 832 nm carrier wavelength, passive star network connects a Microvax, LMI LAMBDA (with PICON) and Silicon Graphics IRIS workstation.There are four additional ports for connecting sensors and actuators. With this testbed, we can evaluate various architectures can also carry out hardware in the loop simulations for studying control strategies. Details of the testbed and preliminary results of intelligence sensor analysis will be presented.

show abstract

Section: Methodsmentioning

confidence: 99%